Transport futur
| Year | Unknown |
| Type | Metal plate, with three printed layers |
| Size | 29 x 44 cm |
| Comments | Three colours, numbered 1-97 and signed. Published by Ed. du Nombre d'or |
| Year | Unknown |
| Type | Metal plate, with three printed layers |
| Size | 29 x 44 cm |
| Comments | Three colours, numbered 1-97 and signed. Published by Ed. du Nombre d'or |